Finding the Fourth Proportional to 136,356,140.82, 203,787,063.99 and 99,545,548.47
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Solution
The fourth proportional to 136,356,140.82, 203,787,063.99 and 99,545,548.47 is: 148,772,874.72
Step by Step Solution
- Step 1: Write the proportion equation
136,356,140.82 : 203,787,063.99 = 99,545,548.47 : x - Step 2: Convert to fraction form
136,356,140.82/203,787,063.99 = 99,545,548.47/x - Step 3: Cross multiply
136,356,140.82x = 203,787,063.99 × 99,545,548.47 - Step 4: Simplify right side
136,356,140.82x = 20,286,095,055,975,536 - Step 5: Solve for x
x = 20,286,095,055,975,536/136,356,140.82 - Step 6: Final answer
x = 148,772,874.72
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.